PMID: 1204632Dec 1, 1975Paper

Biochemistry of development in insects. Stereospecific incorporation of fatty acids into triacylglycerols

European Journal of Biochemistry
A M MunicioM A Perez-Albarsanz

Abstract

1. Previous experiments showed that fatty acids were incorporated into triacylglycerols by homogenates of Ceratitis capitata larvae far more efficiently than by pharate adult homogenates. This metabolic behaviour of both stages of development of the insect has been interpreted throughout the existence of a different acyltransferase activity. To obtain new data on the acyltransferase mechanism, a time-course of the stereospecific incorporation of labelled myristic, palmitic, oleic and linoleic acids into the sn-positions of triacylglycerols has been followed. 2. Studies on the stereospecific incorporation of labelled fatty acids confirmed previous results. Palmitic acid was mainly incorporated into sn-1 and sn-3 positions whereas position 2 exhibited a low incorporation. Myristic acid acylated sn-3 position at a higher rate than it acylated the other sn-positions. Oleic acid was more specifically distributed than palmitic acid and linoleic acid was more efficiently incorporated than the monounsaturated acid. All these data reflect substrate differences in the acyltransferase activity of larval homogenates. Pharate adult homogenates incorporated fatty acids very scarcely and mainly into positions (1 + 3). 3. Kinetics of incorpora...Continue Reading

References

Dec 1, 1975·European Journal of Biochemistry·A M MunicioM A Pérez-Albarsanz
Dec 23, 1974·Biochemical and Biophysical Research Communications·R E Catalán, A M Municio
Sep 19, 1974·Biochimica Et Biophysica Acta·A M MunicioJ A Ramos
Oct 1, 1974·European Journal of Biochemistry·L FrancoM C Rojo
Oct 5, 1972·Biochimica Et Biophysica Acta·A M MunicioA Ribera
May 15, 1973·FEBS Letters·M P CastillónA M Municio
Nov 5, 1971·Biochimica Et Biophysica Acta·A M MunicioA Ribera
Jan 21, 1969·Biochimica Et Biophysica Acta·F PossmayerL L van Deenen
Apr 29, 1969·Biochimica Et Biophysica Acta·W W Christie, J H Moore
Jul 29, 1969·Biochimica Et Biophysica Acta·J Zborowski, L Wojtczak

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Citations

Jan 1, 1985·Progress in Lipid Research·A M BeenakkersW J Van Marrewijk
Apr 19, 1976·Biochemical and Biophysical Research Communications·R E CatalánA M Municio
Sep 7, 1976·Biochemical and Biophysical Research Communications·R E CatalánA M Municio

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